Decoda doesn't run, gives error

This application has failed to start because the application configura

I was evaluating Decoda few months back and had installed on a lab PC. Somehow the evaluation didn't go anywhere and now after 3 months I am back trying same.

I didn't remember that I had it already installed, and I installed it again without removing it from the 'add/remove programs'. There was no error during installation but when I run Decoda it gives error : "This application has failed to start because the application configuration is incorrect. Reinstalling the application may fix this problem"

I am running it on Windows XP service pack 3 with Visual Studio 2008 installed. Any help is really appreciated.